Gas supply apparatus
AssigneeTop Vision Medical Equipment Consultant Co., Ltd.
InventorChing-Lung Sung
Life of this patent
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Abstract
A gas supply apparatus is adapted for supplying gas to a respiratory mask or patient interface, and includes: a housing including a gas inlet, a gas outlet, and a gas flow path; a blower disposed within the gas flow path; a gas filter disposed within the gas flow path; a breath tubing for connecting to the respiratory mask or patient interface; a particle sensor operable to sense a particle concentration and to generate a concentration signal representative of the particle concentration; a signal processor operable to evaluate when the gas filter should be replaced or cleaned according to the concentration signal and to generate an output signal; and an indicator device generating an alarm signal in response to the output signal.
Claims4
A gas supply apparatus adapted for supplying gas to a respiratory mask or patient interface, comprising:
- a housing including a gas inlet, a gas outlet, and a gas flow path extending between and in fluid connection with said gas inlet and said gas outlet;
- a blower disposed within said gas flow path for drawing gas into said gas flow path;
- a gas filter disposed within said gas flow path for filtering the gas;
- a breath tubing in fluid connection with said gas outlet of said housing for connecting to the respiratory mask or patient interface;
- a particle sensor disposed within said housing, and operable to sense a particle concentration in gas and to generate a concentration signal representative of the particle concentration;
- a signal processor electrically coupled to said particle sensor, and operable to evaluate when said gas filter should be replaced or cleaned according to said concentration signal and to generate an output signal;
- and
- an indicator device electrically connecting to said signal processor and generating an alarm signal in response to said output signal.
Dependencies are inferred from the claim text.